25517053 has 4 divisors (see below), whose sum is σ = 25679740. Its totient is φ = 25354368.

The previous prime is 25517029. The next prime is 25517083. The reversal of 25517053 is 35071552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10478169 + 15038884 = 3237^2 + 3878^2 .

It is a cyclic number.

It is not a de Polignac number, because 25517053 - 2⁵ = 25517021 is a prime.

It is a super-2 number, since 2×25517053² = 1302239987609618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25517083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81108 + ... + 81421.

It is an arithmetic number, because the mean of its divisors is an integer number (6419935).

Almost surely, 2^25517053 is an apocalyptic number.

It is an amenable number.

25517053 is a deficient number, since it is larger than the sum of its proper divisors (162687).

25517053 is a wasteful number, since it uses less digits than its factorization.

25517053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162686.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 25517053 is about 5051.4406855866. The cubic root of 25517053 is about 294.4038636478.

It can be divided in two parts, 2551 and 7053, that added together give a square (9604 = 98²).

The spelling of 25517053 in words is "twenty-five million, five hundred seventeen thousand, fifty-three".